Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  c72f8277ba95b23bd193af17e757845f9621a48a
null
(minor) remember each variation's value when switching variation + re-use it

When choosing a different Snak type in the snakview, the value from before switching will be
remembered and re-instated if the Snak type changes back.

Change-Id: I578e388992fd482da49cb94f82adf67d8d6ac822